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heimbach |
1.22 |
C $Header: /u/gcmpack/models/MITgcmUV/model/src/the_main_loop.F,v 1.21 2001/09/28 02:26:57 adcroft Exp $ |
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adcroft |
1.1 |
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#include "CPP_OPTIONS.h" |
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cnh |
1.18 |
CBOP |
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C !ROUTINE: THE_MAIN_LOOP |
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C !INTERFACE: |
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SUBROUTINE THE_MAIN_LOOP( mytime, myiter, mythid ) |
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C !DESCRIPTION: \bv |
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C *================================================================* |
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C | SUBROUTINE the_main_loop |
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C | o Run the ocean model and evaluate the specified cost function. |
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C *================================================================* |
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C | |
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C | THE_MAIN_LOOP is the toplevel routine for the Tangent Linear and |
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C | Adjoint Model Compiler (TAMC). For this purpose the initialization |
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C | of the model was split into two parts. Those parameters that do |
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C | not depend on a specific model run are set in INITIALISE_FIXED, |
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C | whereas those that do depend on the specific realization are |
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C | initialized in INITIALISE_VARIA. |
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C | This routine is to be used in conjuction with the MITgcmuv |
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C | checkpoint 37. |
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C *================================================================* |
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C \ev |
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C !USES: |
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IMPLICIT NONE |
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C == Global variables == |
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adcroft |
1.1 |
#include "SIZE.h" |
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#include "EEPARAMS.h" |
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#include "PARAMS.h" |
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heimbach |
1.6 |
#ifdef ALLOW_AUTODIFF_TAMC |
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heimbach |
1.16 |
# include "tamc.h" |
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# include "ctrl.h" |
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# include "ctrl_dummy.h" |
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# include "cost.h" |
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# include "DYNVARS.h" |
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# include "FFIELDS.h" |
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adcroft |
1.21 |
# include "GAD.h" |
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heimbach |
1.16 |
# ifdef ALLOW_PASSIVE_TRACER |
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# include "TR1.h" |
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# endif |
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# ifdef ALLOW_NONHYDROSTATIC |
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# include "CG3D.h" |
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# endif |
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heimbach |
1.22 |
# ifdef EXACT_CONSERV |
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# include "SURFACE.h" |
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# endif |
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heimbach |
1.6 |
#endif |
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cnh |
1.18 |
C !INPUT/OUTPUT PARAMETERS: |
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C == Routine arguments == |
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C note: under the multi-threaded model myiter and |
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C mytime are local variables passed around as routine |
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C arguments. Although this is fiddly it saves the need to |
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C impose additional synchronisation points when they are |
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C updated. |
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C myIter - iteration counter for this thread |
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C myTime - time counter for this thread |
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C myThid - thread number for this instance of the routine. |
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INTEGER myThid |
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INTEGER myIter |
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_RL myTime |
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heimbach |
1.6 |
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cnh |
1.18 |
C !LOCAL VARIABLES: |
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C == Local variables == |
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heimbach |
1.6 |
integer iloop |
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#ifdef ALLOW_TAMC_CHECKPOINTING |
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integer ilev_1 |
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integer ilev_2 |
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integer ilev_3 |
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integer max_lev2 |
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integer max_lev3 |
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#endif |
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cnh |
1.18 |
CEOP |
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adcroft |
1.1 |
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heimbach |
1.6 |
#ifdef ALLOW_AUTODIFF_TAMC |
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c-- Initialize storage for the cost function evaluation. |
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CADJ INIT dummytape = common, 1 |
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c-- Initialize storage for the outermost loop. |
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CADJ INIT tapelev3 = USER |
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heimbach |
1.7 |
#ifdef ALLOW_TAMC_CHECKPOINTING |
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heimbach |
1.13 |
nIter0 = INT( startTime/deltaTClock ) |
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heimbach |
1.7 |
ikey_dynamics = 1 |
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#endif |
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adcroft |
1.10 |
CALL TIMER_START('ADJOINT SPIN-UP', mythid) |
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heimbach |
1.6 |
#endif |
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adcroft |
1.1 |
C-- Set initial conditions (variable arrays) |
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adcroft |
1.10 |
CALL TIMER_START('INITIALISE_VARIA [THE_MAIN_LOOP]', mythid) |
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heimbach |
1.6 |
CALL INITIALISE_VARIA( mythid ) |
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adcroft |
1.10 |
CALL TIMER_STOP ('INITIALISE_VARIA [THE_MAIN_LOOP]', mythid) |
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heimbach |
1.6 |
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#ifndef ALLOW_AUTODIFF_TAMC |
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c-- Dump for start state. |
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adcroft |
1.10 |
CALL TIMER_START('WRITE_STATE [THE_MAIN_LOOP]', mythid) |
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heimbach |
1.6 |
CALL WRITE_STATE( mytime, myiter, mythid ) |
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adcroft |
1.10 |
CALL TIMER_STOP ('WRITE_STATE [THE_MAIN_LOOP]', mythid) |
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heimbach |
1.6 |
#endif |
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adcroft |
1.9 |
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#ifndef EXCLUDE_MONITOR |
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C-- Check status of solution (statistics, cfl, etc...) |
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adcroft |
1.10 |
CALL TIMER_START('MONITOR [THE_MAIN_LOOP]', mythid) |
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adcroft |
1.9 |
CALL MONITOR( myIter, myTime, myThid ) |
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adcroft |
1.10 |
CALL TIMER_STOP ('MONITOR [THE_MAIN_LOOP]', mythid) |
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adcroft |
1.9 |
#endif /* EXCLUDE_MONITOR */ |
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heimbach |
1.6 |
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heimbach |
1.12 |
#ifdef ALLOW_ADJOINT_RUN |
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heimbach |
1.6 |
c-- Add control vector for forcing and parameter fields |
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CALL CTRL_MAP_FORCING (mythid) |
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#endif |
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adcroft |
1.10 |
#ifdef ALLOW_AUTODIFF_TAMC |
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heimbach |
1.6 |
CALL TIMER_STOP ('ADJOINT SPIN-UP', mythid) |
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_BARRIER |
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adcroft |
1.10 |
#endif |
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heimbach |
1.6 |
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c-- Do the model integration. |
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adcroft |
1.10 |
CALL TIMER_START('MAIN LOOP [THE_MAIN_LOOP]', mythid) |
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heimbach |
1.6 |
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c >>>>>>>>>>>>>>>>>>>>>>>>>>> LOOP <<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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c >>>>>>>>>>>>>>>>>>>>>>>>>>> STARTS <<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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#ifdef ALLOW_AUTODIFF_TAMC |
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#ifdef ALLOW_TAMC_CHECKPOINTING |
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c-- Implement a three level checkpointing. For a two level |
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c-- checkpointing delete the middle loop; for n levels (n > 3) |
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c-- insert more loops. |
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c-- Check the choice of the checkpointing parameters in relation |
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c-- to nTimeSteps: (nchklev_1*nchklev_2*nchklev_3 .ge. nTimeSteps) |
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if (nchklev_1*nchklev_2*nchklev_3 .lt. nTimeSteps) then |
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print* |
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print*, ' the_main_loop: TAMC checkpointing parameters' |
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print*, ' nchklev_1*nchklev_2*nchklev_3 = ', |
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& nchklev_1*nchklev_2*nchklev_3 |
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print*, ' are not consistent with nTimeSteps = ', |
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& nTimeSteps |
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stop ' ... stopped in the_main_loop.' |
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endif |
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max_lev3=nTimeSteps/(nchklev_1*nchklev_2)+1 |
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max_lev2=nTimeSteps/nchklev_1+1 |
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do ilev_3 = 1,nchklev_3 |
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if(ilev_3.le.max_lev3) then |
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CADJ STORE gsnm1 = tapelev3, key = ilev_3 |
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CADJ STORE gtnm1 = tapelev3, key = ilev_3 |
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CADJ STORE gunm1 = tapelev3, key = ilev_3 |
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CADJ STORE gvnm1 = tapelev3, key = ilev_3 |
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CADJ STORE theta = tapelev3, key = ilev_3 |
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CADJ STORE salt = tapelev3, key = ilev_3 |
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CADJ STORE uvel = tapelev3, key = ilev_3 |
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CADJ STORE vvel = tapelev3, key = ilev_3 |
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CADJ STORE wvel = tapelev3, key = ilev_3 |
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CADJ STORE etan = tapelev3, key = ilev_3 |
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heimbach |
1.17 |
CADJ STORE gu = tapelev3, key = ilev_3 |
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CADJ STORE gv = tapelev3, key = ilev_3 |
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heimbach |
1.6 |
#ifdef INCLUDE_CD_CODE |
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heimbach |
1.22 |
CADJ STORE etanm1 = tapelev3, key = ilev_3 |
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heimbach |
1.6 |
CADJ STORE uveld = tapelev3, key = ilev_3 |
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CADJ STORE vveld = tapelev3, key = ilev_3 |
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CADJ STORE unm1 = tapelev3, key = ilev_3 |
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CADJ STORE vnm1 = tapelev3, key = ilev_3 |
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heimbach |
1.17 |
CADJ STORE gucd = tapelev3, key = ilev_3 |
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CADJ STORE gvcd = tapelev3, key = ilev_3 |
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heimbach |
1.6 |
#endif |
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heimbach |
1.12 |
#ifdef ALLOW_COST_TRACER |
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CADJ STORE tr1 = tapelev3, key = ilev_3 |
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CADJ STORE gtr1nm1 = tapelev3, key = ilev_3 |
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#endif |
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heimbach |
1.22 |
#ifdef EXACT_CONSERV |
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CADJ STORE etaH = tapelev3, key = ilev_3 |
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CADJ STORE hDivFlow = tapelev3, key = ilev_3 |
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#endif |
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heimbach |
1.6 |
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c-- Initialise storage for the middle loop. |
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CADJ INIT tapelev2 = USER |
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do ilev_2 = 1,nchklev_2 |
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if(ilev_2.le.max_lev2) then |
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CADJ STORE gsnm1 = tapelev2, key = ilev_2 |
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CADJ STORE gtnm1 = tapelev2, key = ilev_2 |
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CADJ STORE gunm1 = tapelev2, key = ilev_2 |
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CADJ STORE gvnm1 = tapelev2, key = ilev_2 |
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CADJ STORE theta = tapelev2, key = ilev_2 |
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CADJ STORE salt = tapelev2, key = ilev_2 |
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CADJ STORE uvel = tapelev2, key = ilev_2 |
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CADJ STORE vvel = tapelev2, key = ilev_2 |
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CADJ STORE wvel = tapelev2, key = ilev_2 |
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CADJ STORE etan = tapelev2, key = ilev_2 |
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heimbach |
1.17 |
CADJ STORE gu = tapelev2, key = ilev_2 |
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CADJ STORE gv = tapelev2, key = ilev_2 |
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heimbach |
1.6 |
#ifdef INCLUDE_CD_CODE |
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heimbach |
1.22 |
CADJ STORE etanm1 = tapelev2, key = ilev_2 |
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heimbach |
1.6 |
CADJ STORE uveld = tapelev2, key = ilev_2 |
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CADJ STORE vveld = tapelev2, key = ilev_2 |
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CADJ STORE unm1 = tapelev2, key = ilev_2 |
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CADJ STORE vnm1 = tapelev2, key = ilev_2 |
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heimbach |
1.17 |
CADJ STORE gucd = tapelev2, key = ilev_2 |
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CADJ STORE gvcd = tapelev2, key = ilev_2 |
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heimbach |
1.6 |
#endif |
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heimbach |
1.12 |
#ifdef ALLOW_COST_TRACER |
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CADJ STORE tr1 = tapelev2, key = ilev_2 |
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CADJ STORE gtr1nm1 = tapelev2, key = ilev_2 |
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heimbach |
1.22 |
#endif |
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#ifdef EXACT_CONSERV |
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CADJ STORE etaH = tapelev2, key = ilev_2 |
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CADJ STORE hDivFlow = tapelev2, key = ilev_2 |
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heimbach |
1.12 |
#endif |
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heimbach |
1.6 |
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c-- Initialize storage for the innermost loop. |
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c-- Always check common block sizes for the checkpointing! |
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CADJ INIT comlev1 = COMMON,nchklev_1 |
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CADJ INIT comlev1_bibj = COMMON,nchklev_1*nsx*nsy*nthreads_chkpt |
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CADJ INIT comlev1_bibj_k = COMMON,nchklev_1*nsx*nsy*nr*nthreads_chkpt |
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CADJ INIT comlev1_kpp = COMMON,nchklev_1*nsx*nsy |
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adcroft |
1.21 |
#ifndef DISABLE_MULTIDIM_ADVECTION |
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heimbach |
1.20 |
CADJ INIT comlev1_bibj_pass |
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CADJ & = COMMON,nchklev_1*nsx*nsy*nr*nthreads_chkpt*maxpass |
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adcroft |
1.21 |
#endif /* DISABLE_MULTIDIM_ADVECTION */ |
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heimbach |
1.20 |
#ifdef ALLOW_BULKFORMULAE |
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CADJ INIT comlev1_exf_1 |
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CADJ & = COMMON,nchklev_1*snx*nsx*sny*nsy*nthreads_chkpt |
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CADJ INIT comlev1_exf_2 |
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CADJ & = COMMON,niter_bulk*nchklev_1*snx*nsx*sny*nsy*nthreads_chkpt |
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#endif |
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heimbach |
1.6 |
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do ilev_1 = 1,nchklev_1 |
| 230 |
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c-- The if-statement below introduces a some flexibility in the |
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c-- choice of the 3-tupel ( nchklev_1, nchklev_2, nchklev_3 ). |
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c-- |
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c-- Requirement: nchklev_1*nchklev_2*nchklev_3 .ge. nTimeSteps . |
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| 236 |
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iloop = (ilev_3 - 1)*nchklev_2*nchklev_1 + |
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& (ilev_2 - 1)*nchklev_1 + ilev_1 |
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| 239 |
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if ( iloop .le. nTimeSteps ) then |
| 240 |
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| 241 |
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#else /* ALLOW_TAMC_CHECKPOINTING undefined */ |
| 242 |
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c-- Initialise storage for reference trajectory without TAMC check- |
| 243 |
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c-- pointing. |
| 244 |
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CADJ INIT history = USER |
| 245 |
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CADJ INIT comlev1_bibj = COMMON,nchklev_0*nsx*nsy*nthreads_chkpt |
| 246 |
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CADJ INIT comlev1_bibj_k = COMMON,nchklev_0*nsx*nsy*nr*nthreads_chkpt |
| 247 |
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CADJ INIT comlev1_kpp = COMMON,nchklev_0*nsx*nsy |
| 248 |
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| 249 |
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C-- RG replace 2 by max of num_v_smooth_Ri |
| 250 |
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CADJ INIT comlev1_kpp_sm = COMMON,nchklev_0*nsx*nsy*2 |
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| 252 |
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c-- Check the choice of the checkpointing parameters in relation |
| 253 |
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c-- to nTimeSteps: (nchklev_0 .ge. nTimeSteps) |
| 254 |
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if (nchklev_0 .lt. nTimeSteps) then |
| 255 |
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print* |
| 256 |
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print*, ' the_main_loop: TAMC checkpointing parameter ', |
| 257 |
adcroft |
1.19 |
& 'nchklev_0 = ', nchklev_0 |
| 258 |
heimbach |
1.6 |
print*, ' not consistent with nTimeSteps = ', |
| 259 |
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& nTimeSteps |
| 260 |
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stop ' ... stopped in the_main_loop.' |
| 261 |
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endif |
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adcroft |
1.10 |
DO iloop = 1, nTimeSteps |
| 264 |
heimbach |
1.6 |
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| 265 |
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#endif /* ALLOW_TAMC_CHECKPOINTING */ |
| 266 |
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| 267 |
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#else /* ALLOW_AUTODIFF_TAMC undefined */ |
| 268 |
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| 269 |
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c-- Start the main loop of adjoint_Objfunc. Automatic differentiation |
| 270 |
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c-- NOT enabled. |
| 271 |
adcroft |
1.10 |
DO iloop = 1, nTimeSteps |
| 272 |
heimbach |
1.6 |
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| 273 |
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#endif /* ALLOW_AUTODIFF_TAMC */ |
| 274 |
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| 275 |
adcroft |
1.10 |
c-- >>> Loop body start <<< |
| 276 |
heimbach |
1.6 |
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| 277 |
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#ifdef ALLOW_TAMC_CHECKPOINTING |
| 278 |
heimbach |
1.14 |
nIter0 = INT( startTime/deltaTClock ) |
| 279 |
heimbach |
1.13 |
ikey_dynamics = ilev_1 |
| 280 |
heimbach |
1.6 |
#endif |
| 281 |
heimbach |
1.14 |
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| 282 |
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| 283 |
heimbach |
1.13 |
CALL TIMER_START('FORWARD_STEP [THE_MAIN_LOOP]',mythid) |
| 284 |
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CALL FORWARD_STEP( iloop, mytime, myiter, mythid ) |
| 285 |
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CALL TIMER_STOP ('FORWARD_STEP [THE_MAIN_LOOP]',mythid) |
| 286 |
adcroft |
1.8 |
|
| 287 |
heimbach |
1.12 |
#ifdef ALLOW_COST |
| 288 |
heimbach |
1.13 |
C-- compare model with data and compute cost function |
| 289 |
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C-- this is done after exchanges to allow interpolation |
| 290 |
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CALL TIMER_START('COST_TILE [THE_MAIN_LOOP]',myThid) |
| 291 |
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CALL COST_TILE ( myThid ) |
| 292 |
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CALL TIMER_STOP ('COST_TILE [THE_MAIN_LOOP]',myThid) |
| 293 |
heimbach |
1.12 |
#endif |
| 294 |
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| 295 |
heimbach |
1.13 |
c-- >>> Loop body end <<< |
| 296 |
heimbach |
1.6 |
|
| 297 |
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#ifdef ALLOW_AUTODIFF_TAMC |
| 298 |
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#ifdef ALLOW_TAMC_CHECKPOINTING |
| 299 |
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endif |
| 300 |
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enddo |
| 301 |
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endif |
| 302 |
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enddo |
| 303 |
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endif |
| 304 |
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enddo |
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#else |
| 306 |
|
|
enddo |
| 307 |
|
|
#endif |
| 308 |
|
|
|
| 309 |
|
|
#else |
| 310 |
|
|
enddo |
| 311 |
|
|
#endif |
| 312 |
|
|
|
| 313 |
heimbach |
1.12 |
#ifdef ALLOW_COST |
| 314 |
|
|
c-- Sum all cost function contributions. |
| 315 |
|
|
call TIMER_START('COST_FINAL [ADJOINT SPIN-DOWN]', mythid) |
| 316 |
|
|
call COST_FINAL ( mythid ) |
| 317 |
|
|
call TIMER_STOP ('COST_FINAL [ADJOINT SPIN-DOWN]', mythid) |
| 318 |
|
|
#endif |
| 319 |
|
|
|
| 320 |
heimbach |
1.6 |
_BARRIER |
| 321 |
adcroft |
1.10 |
CALL TIMER_STOP ('MAIN LOOP [THE_MAIN_LOOP]', mythid) |
| 322 |
adcroft |
1.1 |
|
| 323 |
adcroft |
1.10 |
END |
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